💡/⚫️

#light on #light off #bulb #on/off #state change

💡🔛⚫️

#switch #light on #light off #toggle #bulb #state change

💡🔛✨

#on #light on #illuminated #powered on #switch on

💡/⚫➡️💡

#logic gate #OR gate #circuit logic #light on #boolean condition #digital design

💡/🚫💡

#conductivity #resistivity #circuit complete #circuit broken #electrical conductivity #electrical resistivity #current flow #light on #light off

🌕💡

#moon on #moon light #light on #moon lamp #lunar light